a is a negative number.
b is a positive number.
Therefore, a - b is....?
We have hundreds of course questions with personalized recommendations + Account 100% premium
a is a negative number.
b is a positive number.
Therefore, a - b is....?
We test using an example:
We define that
a = -1
b = 2
Now we replace in the exercise:
-1-(2) = -1-2 = -3
In this case, the result is negative!
We test a case where the value of b is less than a
We define that
a = -2
b = 1
-2-(1) = -2-1 = -3
In this case, the result is again negative.
Since it is not possible to produce a case where a is greater than b (because a negative number is always less than a positive number),
The result will always be the same: "negative", and that's the solution!
Negative
What will be the sign of the result of the next exercise?
\( (-2)\cdot(-4)= \)
Get unlimited access to all 18 Signed Numbers (Positive and Negative) questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime